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This is a pressure-actuated regulator that is designed for any that fits within the flow and pressure range of the regulator. The regulator determines the direction of the flow in the system and maintains system pressure via an adjustable nut that controls the amount of tension on a pressure spring. When the water flow stops, it is diverted through the bypass port at virtually no pressure. The regulator is capable of handling one or more shut-off guns and should be run with no bypass (if the full flow from the pump is going through the regulator). It actuates at around 10% above the system pressure.

WARNING: This product might contain a chemical known to the State of California to cause cancer, and birth defects or other reproductive harm. For more information go to

Specification US Metric
Minimum Flow2.1 GPM8 L/min
Maximum Flow32 GPM120 L/min
Min Pressure1600 PSI110 bar
Max Pressure3200 PSI220 bar
Temperature Rating160 °F70 °C
Inlet Port1" FNPT
Outlet Port1" FNPT
Bypass Port1" BSP
Weight17.5 lbs.8 kg
The repair kits listed to the right are available for this pump. If you need further information about these repair kits, or have questions about other specific parts for your pump, please contact you local Giant distributor or contact Giant customer service.
Repair Kit – Part #12082R
4A 12118 Spring, Inlet Valve 1
5 12047-0100 Ball Valve, Inlet 1
11 06577 O-Ring 2
12 12056 Support Ring 2
14 06736 O-Ring 2
17 12283 Packing 1
19A 22618 O-Ring, Valve Stem 1
19B 12064 Spacer, Valve Stem 2
19D 12066 Tension Sleeve 1
Small Repair Kit – Part #09619R
11 06577 O-Ring 2
12 12056 Support Ring 2
14 06736 O-Ring 2
17 12283 Packing 1
19A 22618 O-Ring, Valve Stem 1
19D 12066 Tension Sleeve 1


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  • Giant Industries Limited Warranty
  • 22949R Literature



Sample Pump

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